The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2019
Filed:
Nov. 17, 2016
Applicant:
Stmicroelectronics (Rousset) Sas, Rousset, FR;
Inventor:
Yannick Teglia, Belcodene, FR;
Assignee:
STMicroelectronics (Rousset) SAS, Rousset, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/06 (2006.01); H04L 9/00 (2006.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0618 (2013.01); H04L 9/002 (2013.01); H04L 9/003 (2013.01); H04L 9/0869 (2013.01); H04L 9/3066 (2013.01);
Abstract
A method for protecting a ciphering algorithm executing looped operations on bits of a first quantity and on a first variable initialized by a second quantity, wherein, for each bit of the first quantity, a random number is added to the state of this bit to update a second variable maintained between two thresholds.